| Beneficial Use of Harvested Ponded Fly Ash and Landfilled FGD Materials for High-Volume Surface Mine Reclamation |  |  |
Project Information
| Prime Performer: | Ohio State University (Columbus, OH) | Agreement Number: | FE0032038 | |
|---|---|---|---|---|
| Project Duration: | 07/06/2021 - 07/05/2024 | Total Award Value: | $1,273,996 | |
| Technology Area: | Emissions Control | DOE Share: | $999,872 | |
| Key Technology: | Ash Beneficial Use | Performer Share: | $274,124 | |
Project Description
The focus of this project will be on the viability of beneficial use of harvested coal combustible residuals (CCRs), especially ponded fly ash and landfilled flue gas desulfurization (FGD) by-products . The project will take place at 3 sites represented by the phases I and II and the two phase III circles in the adjacent graphic. The proposed project is designed to demonstrate laboratory- as well as bench-scale testing and construction methods that can be applied to a wide variety of ash ponds, closed FGD landfills, and abandoned coal mine sites in the United States. The major tasks for this project are:
- Geotechnical and environmental testing and evaluation using an existing bench-scale facility of harvested ponded fly ash and landfilled FGD material at the former Conesville power plant. Successful completion of the lab- and bench-scale testing will lead to Task 2 - Conesville Full-Scale Demonstration.
- About 2 million tons of harvested CCR materials from an inactive fly ash pond and an adjacent old FGD landfill will be used to fully reclaim a nearby partially-abandoned surface coal mine. Site monitoring will be carried out during the project.
- Numerical models leveraging the rich set of data collected from the Conesville site will be used to analyze risks for high-volume surface mine reclamation with harvested CCRs. Transport simulators and geochemical reaction models will be integrated, calibrated, and validated. Sensitivity analysis of the temporal evolution and significance of the factors involved in the process will be performed to determine significant risk factors and drivers.
Project Benefits
The project could result in the reduced by-product liability and disposal costs for coal-fired utilities in a manner that is economically viable and beneficial to the environment, the public’s health and safety, and the power-generating companies. Also, the results of this project could provide owners, design engineers, and regulatory agencies with specific information about the technical feasibility and probable cost of using these methods for remediation and reclamation of abandoned coal mine sites across the United States, especially in the eastern and midwestern coal mining regions.
Presentations, Papers, and Publications
- Beneficial Use of Harvested Ponded Fly Ash and Landfilled FGD Materials for High-Volume Surface Mine Reclamation (Aug 2021)
Project Kick Off Meeting
Contact Information
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